20
Andover Controls Corporation
3 Amp
250 VDC
Slow-Blow Fuse
Troubleshooting
No Response to Power Switch
If there are no indicators displayed on the status panel after power-up, the unit is not
operating. This could be due to the loss of primary AC power or other internal
dysfunction.
•
Check that power is available and connected properly to the AC or DC Input
power terminals. This can be done using a multimeter.
•
If input power appears to be OK, remove power and all other connections from
the unit. Open the cover. Remove the plug-in power fuse component(s) and
check for continuity with an Ohm meter. If the fuse is blown, replace it with a
similar value fuse (see diagrams). After replacement, replace the cover.
PS 120/240 AC 50, AC 85
Andover P/N: 01-2100-207
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